SWITCHING INSTALLATION WITH ARC PROTECTION AND ARC PROTECTION METHOD
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United States of America Patent
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Issued Date -
Jul 21, 2011
app pub date -
Sep 25, 2009
filing date -
Sep 26, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A switching installation including a gas-filled enclosure having an input conductor, an actuator and an arc initiator. The actuator is arranged to actuate the arc initiator upon the occurrence of a first arc with a first length in the enclosure. The arc initiator creates, upon being actuated, a path for a second arc of a second length, the second length being shorter than the first length. The actuator can be arranged to react on an increase in pressure in the enclosure upon the occurrence of the first arc. The gas can be air or SF6. The arc initiator can create, upon being actuated, the path for the second arc through a section of a solid cable insulation isolating the input conductor from the enclosure.
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